Finding the Fourth Proportional to 1,196.16, 1,793.18 and 415.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.16 : 1,793.18 = 415.62 : x
2. Step 2: Convert to fraction form
   1,196.16/1,793.18 = 415.62/x
3. Step 3: Cross multiply
   1,196.16x = 1,793.18 × 415.62
4. Step 4: Simplify right side
   1,196.16x = 745,281.47
5. Step 5: Solve for x
   x = 745,281.47/1,196.16
6. Step 6: Final answer
   x = 623.06